ST ST7735R - 7.2 DC characteristic

ST7735R
V0.2 19 2009-08-05
7.2 DC characteristic
Specification
Parameter
Symbo
l
Condition
Min Typ Max
Uni
t
Related
Pins
Power & operation voltage
System voltage VDD Operating voltage 2.3 2.75 4.8 V
Interface operation
voltage
VDDI I/O supply voltage 1.65 1.8 3.7 V
Gate driver high voltage VGH 10 15 V
Gate driver low voltage VGL -12.4 -7.5 V
Gate driver supply voltage | VGH-VGL | 17.5 27.5 V
Input / Output
Logic-high input voltage VIH 0.7VDDI VDDI V Note 1
Logic-low input voltage VIL VSS 0.3VDDI V Note 1
Logic-high output voltage VOH IOH = -1.0mA 0.8VDDI VDDI V Note 1
Logic-low output voltage VOL IOL = +1.0mA VSS 0.2VDDI V Note 1
Logic-high input current IIH VIN = VDDI 1 uA Note 1
Logic-low input current IIL VIN = VSS -1 uA Note 1
Input leakage current IIL IOH = -1.0mA -0.1 +0.1 uA Note 1
VCOM voltage
VCOM amplitude VCOM -2 -0.425 V
Source driver
Source output range Vsout 0.1 GVDD V
Gamma reference voltage GVDD 3.0 5.0 V
Source output settling
time
Tr
Below with 99%
precision
20 us Note 2
Output offset voltage Voffset 35 mV Note 3
Notes:
1. TA= -30 to 85 ℃ .
2. Source channel loading= 2K Ω +12pF/channel, Gate channel loading=5K Ω +40pF/channel.
3. The Max. value is between measured point of source output and gamma setting value.